Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
b+d=0;b*d+c+e=0;e*b+c*d=0; e*c=1
b+d=0;b*d+c+e=0;e*b+c*d=0; e*c=1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
